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Scientists have created a miniature version of an invisibility cloak like Harry Potter, so far only working in an invisible light microwaves. Making an invisibility cloak is still unbelievable difficult task, but scientists have taken a big step forward to ensure that create a cloak that will make a person invisible. Material for creating an invisibility cloak called a meta-screen, which consists of copper tapes attached to a flexible polycarbonate film. Thickness copper strips is only 66 micrometers (66 million times less than a meter), and a polycarbonate film – 100 micrometers per thickness. This invention is very different from previous attempts. creating invisible clothes. Scientists used to try to change the direction of the rays of light so that they surround the object, and not reflected from it using volumetric metamaterial. New Invisibility Cloak manufactured using technology that makes light waves are not reflected from the surface and therefore are not visible to the human eye.
“When the light waves from the fabric and the object intersect, they lose energy, therefore, the effect of invisibility “, – said co-author of the study from the University of Texas Andre Alu. In the framework of laboratory experiments, Alu along with her colleagues were able to make the 18-cm cylindrical invisible rod using light microwaves. Researchers argue that with using this technology you can “hide” objects of almost any forms. “The advantage of this technology over existing is that it is easy to use and improve, they say scientists. – We proved that volumetric metamaterial is optional, to suppress the waves of light – just use a simple and convenient meta-screen material. In fact, meta screens create and easier to use than metamaterial. Size of objects that can be “hidden”, commensurate with the wavelength, so when the use of optical frequencies can really be discouraged scattering of light only in micro-objects. “This invention will please not just Harry Potter fans and spyware. Researchers believe that the invention can be used in manufacturing of biomedical instruments and proximity sensors. That is, the results of the study can really have a great and positive impact on modern technology. Transfer Sergey Vasilenkov
